LNS Express 220 S2 Instruction Manual
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LNS Express 220 S2 Instruction Manual

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  • Page 4: Table Of Contents

    V04.0 TABLE OF CONTENTS CHAPTER 1: BASIC PRINCIPLES ............. 3 STRUCTURE ........................4 RIGHTS ..........................5 SAFETY INSTRUCTIONS ....................6 SAFETY DEVICES ......................7 CHAPTER 2: TECHNICAL DATA ............... 9 CHARACTERISTICS ......................10 FLOOR PLAN ........................10 LAYOUT OF THE ELEMENTS ..................15 CHAPTER 3: SYSTEM START UP ............
  • Page 5 CHAPTER 9: MALFUNCTIONS/MAINTENANCE ........95 FACTORS AFFECTING PERFORMANCE ................. 96 ALARMS ..........................98 SERVO AMPLIFIER ALARMS ..................106 MAINTENANCE ....................... 111 CHAPTER 10: APPENDICES ..............113 ORDERING FORM ......................114 PROGRAMMING EXAMPLE .................... 115 LNS ADRESSES ......................116 EXPRESS 220 S2/320 S2...

  • Page 6: Chapter 1: Basic Principles

    CHAPTER 1: BASIC PRINCIPLES CHAPTER 1: BASIC PRINCIPLES EXPRESS 220 S2/320 S2...

  • Page 7: Structure

    (see chapter *) or (see point *). 1.2. Captions Whenever possible, the reference numbers contained in the instruction manual are shown with the LNS ordering number of the indicated element. To make it easier to place an order of supplies, a form has been included in the annex at the end of this manual.

  • Page 8: Rights

    LNS. LNS and its subsidiaries cannot be held responsible for damage and problems arising from the use of options and products other than LNS products, or products approved by LNS.

  • Page 9: Safety Instructions

    All persons working with this device must have read and understood the instructions in this manual. LNS accepts no responsibility for possible accidents or property damage caused when safety instructions are not followed.

  • Page 10: Safety Devices

    CHAPTER 1: BASIC PRINCIPLES SAFETY DEVICES The EXPRESS 220 S2 bar feed system has been designed with a focus on maximum safety during its handling and complies with all EC requirements. Safety covers and devices make access to the moving parts of the bar feeder impossible. Safety switches keep the bar feeder from operating when these protections are open.
  • Page 11 4.2. Layout of the safety elements on the barfeed system SQ11 SQ10 Designation Description Main access cover Emergency stop push button SQ10 Safety switch of the retraction system (option) SQ11 Safety switch of the main access cover EXPRESS 220 S2/320 S2...

  • Page 12: Chapter 2: Technical Data

    CHAPTER 2: TECHNICAL DATA CHAPTER 2: TECHNICAL DATA EXPRESS 220 S2/320 S2...

  • Page 13: Characteristics

    The following floor space plans indicate the most frequently used dimensions for placing the bar feed system. Details on the dimensions of other parts or elements of the bar feeder will be provided upon request. All dimensions are in millimetres A: Left (to-right)/front loading (L/F) B: Right (to left)/front loading (R/F) EXPRESS 220 S2/320 S2...
  • Page 14 CHAPTER 2: TECHNICAL DATA 2.1. Left/front loading (3 m) EXPRESS 220 S2/320 S2...
  • Page 15 CHAPTER 2: TECHNICAL DATA 2.2. Right/front loading (3 m) EXPRESS 220 S2/320 S2...
  • Page 16 CHAPTER 2: TECHNICAL DATA 2.3. Left/front loading (2 m) EXPRESS 220 S2/320 S2...
  • Page 17 CHAPTER 2: TECHNICAL DATA 2.4. Right/front loading (2 m) EXPRESS 220 S2/320 S2...

  • Page 18: Layout Of The Elements

    Air filtering unit Electrical cabinet Loading ramp Retraction system (option) Rear stand Remnant drop tray Hydraulic tank Remnant control Remnant extraction Guiding elements Main access cover Measure path sensor Front rest Air blast Remote control Front stand EXPRESS 220 S2/320 S2...
  • Page 19 CHAPTER 2: TECHNICAL DATA EXPRESS 220 S2/320 S2...

  • Page 20: Chapter 3: System Start Up

    CHAPTER 3: SYSTEM START UP CHAPTER 3: SYSTEM START UP EXPRESS 220 S2/320 S2...

  • Page 21: Transportation

    When transported by sea or air, the second solution is recommended. Regardless of the type of packaging, the unpacking and lifting instructions recommended by LNS must be observed in order to prevent any injuries to persons or damage to objects.
  • Page 22 The remote control (B) and the interface plug are packaged in a separate box , with the technical documentation and the accessories (C). · Take out the parts and place them in an easily accessible area for mounting the bar feeder. EXPRESS 220 S2/320 S2...
  • Page 23 CHAPTER 3: SYSTEM START UP 1.3. Preparation for mounting For mounting and installing the bar feeder, it is advisable to contact LNS or one of its agents. The latter cannot be held responsible for any malfunction resulting from an incorrect installation in which they did not take part.

  • Page 24: Assembly

    During the alignment, ensure that there is no reduction in the spindle (spindle liner). The alignment may be carried out using a nylon string, an optical tool, etc. If you do not have any alignment tools, please contact LNS or their local representative so they may take care of the bar feeder installation.

  • Page 25: Anchoring

    Once the bar feeder is in place and perfectly aligned, it should be anchored to the ground to make it stable. To accomplish this, 2x 4 anchorage points (A) have been provided. The 8 anchorage bolts (B) M10x100 mm (1/2"x4") are provided by LNS. ·...

  • Page 26: Chapter 4: Electrics

    CHAPTER 4: ELECTRICS CHAPTER 4: ELECTRICS EXPRESS 220 S2/320 S2...

  • Page 27: Electrical Equipment

    Particular attention should be given to the handling of electrical elements because of risks of electrocution. In case of possible electrical malfunctions, it is advisable to contact LNS or their local representative.
  • Page 28 2-position option safety device (option) SQ11 Main access cover closed switch SQ12 Remnant control SQ13 Front rest referencing SQ14 Front rest pulse input SQ17 Switch guiding channel open SQ18 Switch guiding channel closed SQ20 Switch bar selection EXPRESS 220 S2/320 S2...
  • Page 29 · Modify the terminal block wiring of the motor according to the diagram above · Close the cover unit of the motor and the main safety cover · Turn the bar feeder on (engage QS1 and QM1) EXPRESS 220 S2/320 S2...

  • Page 30: Electrical Cabinet

    Safety control relay (option) Safety breaker (option) Automatic front rest motor opening M6 relay Automatic front rest motor closing M6 relay Relay bar selection KA13 Main access cover relay Transformer 1 ph Power supply 24 VDC, 150W EXPRESS 220 S2/320 S2...
  • Page 31 The power supply to the transformer is immediately interrupted to avoid material damage. After having located and repaired the problem causing this interruption, reset the lever of the circuit breaker. Designation Description Power in connecting terminal Lever on/off Power out connecting terminal EXPRESS 220 S2/320 S2...
  • Page 32 The T2 power supply has an output of 24 VDC and powers the rest of the bar feeder's functions. The transformer T2 output is protected by a fuse installed in a support in the electrical cabinet. EXPRESS 220 S2/320 S2...
  • Page 33 The wires on the extremities of the battery connecting it to the connector are part of the battery. Fit the new battery inside the support and close it. Connect the connector. Used batteries must be disposed of in an ecologically safe manner. On the front EXPRESS 220 S2/320 S2...
  • Page 34 CHAPTER 4: ELECTRICS Cover Open the battery compartment. Locking clip Remove the battery from its housing and replace. Close the battery compartment. "Click in" to close EXPRESS 220 S2/320 S2...
  • Page 35 Run: The PLC is in RUN mode. This is the standard mode. Halt: The PLC is in HALT mode. Contact your LNS dealer. Error: The PLC is in a failure mode. Contact your LNS dealer. M1 slot: Usually this slot is left unused, and is used for software updates through flash (red) cards. Do not insert any flash card unless instructed by LNS.
  • Page 36 Push order Relay automatic mode Programmable interface input Relay auxiliary end of bar Programmable interface input Programmable interface output Programmable interface input Programmable interface output Programmable interface input Programmable interface output INT0 SQ14 Front rest pulse input EXPRESS 220 S2/320 S2...

  • Page 37: Interface

    Only LNS (or certified) technician is authorized to modify the interface or parameter system. 3.1. Description The interface cable(s), between the bar feeder and the lathe is (are) provided by LNS. Although an example of an interface diagram is provided, the diagram for the interface corresponding to your device, essential when making the electrical connection, is located inside the electrical cabinet.
  • Page 38 - Confirmation of the loading of a new bar After the new bar has been loaded and positioned on the lathe spindle, relay R2 confirms the end of the loading cycle. The operational cycle of relay R2 (pulsed, latched, etc.) is controlled by parameters. EXPRESS 220 S2/320 S2...
  • Page 39 Emergency Stop circuit of the lathe. 3.2.4. Options The options described below are an integral part of the standard equipment of LNS bar feeders. These signals, however, are not required for the proper operation of the devices, or the safety locking for protecting persons and materials.

  • Page 40: Chapter 5: Pneumatics

    CHAPTER 5: PNEUMATICS CHAPTER 5: PNEUMATICS EXPRESS 220 S2/320 S2...

  • Page 41: Pneumatic Equipment

    Pneumatic cylinders opening / closing guide zone Loading bar pneumatic cylinders Front stopper Pneumatic pusher cylinder lock to the reference position Pneumatic cylinders open/close push bracket Pneumatic cylinders push locked/released Pneumatic cylinders support guide zone (optional 2 mm) EXPRESS 220 S2/320 S2...

  • Page 42: Air Filtering Unit

    To increase the pressure, turn it clockwise. To decrease it, turn it in the opposite direction. The operational pressure should be set at 5 bar. When the settings are done, lock the adjusting knob by pushing it downward. EXPRESS 220 S2/320 S2...

  • Page 43: Pneumatic Battery

    Guiding channel opening YV6B Guide area closure valve YV7A Pusher against locked channel cover valve YV7B Pusher release in the channel valve Option for 2 mm Option for 2 mm YV10 Remnant check YV11 Pusher locked in position EXPRESS 220 S2/320 S2...
  • Page 44 The pressure control unit is directly integrated into the pressure control unit. Setting procedure for the pressure control unit: · Remove the transparent panel from the pressure gauge · Using a screwdriver, turn the setting screw · Refit the transparent panel. EXPRESS 220 S2/320 S2...
  • Page 45 CHAPTER 5: PNEUMATICS EXPRESS 220 S2/320 S2...

  • Page 46: Chapter 6: Hydraulics

    CHAPTER 6: HYDRAULICS CHAPTER 6: HYDRAULICS EXPRESS 220 S2/320 S2...

  • Page 47: Hydraulic Equipment

    A level allows the filling rate of the hydraulic tank to be monitored. 1.2. Layout of the elements Designation Description Oil gauge Oil supply to the guiding channels (not shown here) Front rest supply tube Drain plug Hydraulic pump motor Pressure control switch EXPRESS 220 S2/320 S2...
  • Page 48 To drain the bar feeder, place a container with sufficient capacity underneath the drain plug, and unscrew the drain plug. A thicker oil (ISO VG 150) may, in certain cases, produce better results when guiding profiled bars. EXPRESS 220 S2/320 S2...

  • Page 49: Hydraulic Diagram

    CHAPTER 6: HYDRAULICS HYDRAULIC DIAGRAM 2.1. Symbols The following table represents the hydraulic symbols used, and their description: Symbol Description Designation Hydraulic pump motor Hydraulic pressure control unit Hydraulic tank Guide zone Front rest 2.2. Diagram EXPRESS 220 S2/320 S2...

  • Page 50: Chapter 7: General Description

    CHAPTER 7: GENERAL DESCRIPTION CHAPTER 7: GENERAL DESCRIPTION EXPRESS 220 S2/320 S2...

  • Page 51: Bar Magazine

    2. Load the bar stocks on the loading ramp (A). 3. By means of the upper limiters locking lever (E), set manually the diameter limiters (B) to ensure no bar can jump over the others. Note: (Clearance of around 1 mm). EXPRESS 220 S2/320 S2...

  • Page 52: Guiding Zone

    Sets of guidance elements of different diameters are available. Designation Description Guiding element Oil supply Upper locking of the guiding zone Lower locking of the guiding zone Damping plate Pneumatic cylinder guiding elements closing/opening Proximity switch guiding element opening/closing (SQ17, SQ18) EXPRESS 220 S2/320 S2...
  • Page 53 The best guiding quality is determined by guiding elements 1 mm bigger than bar stock diameter. Hexagonal : 17 mm across flats Square : 14 mm across flats EXPRESS 220 S2/320 S2...
  • Page 54 2.4. Connecting parts to the lathe Ring change for option 2 mm Telescopic tube, depending on the maximum spindle stroke. Adaptation parts depending on the spindle back design. Guiding bushing depending on the guiding reduction tubes diameter. EXPRESS 220 S2/320 S2...

  • Page 55: Chain Drive

    Gear driven screw gear Chain kit for 2 m bar feeder Chain kit for 3 m bar feeder Chain kit for 4 m bar feeder Chain kit for 12’ bar feeder Sprocket Z = 12 Servo motor EXPRESS 220 S2/320 S2...
  • Page 56 With a torque wrench, apply a torque of 0,8 Nm on the screw (C). · When done, tighten the big locking nut (E) of the gearwheel (B). · Lock the system with the lock nut (D) of the screw (C). EXPRESS 220 S2/320 S2...

  • Page 57: Remnant Extraction System

    The vise of the bar feed system allows the extraction of remnants of from 70 mm to 400 mm long (300 mm for the 2 m version). 4.2. Layout of the elements SQ12 Designation Description Material clamping system Remnant extraction drawer SQ12 Material presence check EXPRESS 220 S2/320 S2...
  • Page 58 The check is carried out as follows: · the optical switch first determinates if the remnant has been extracted out of the spindle. · the optical switch then determinates if the remnant has been properly ejected out of the bar feeder. EXPRESS 220 S2/320 S2...

  • Page 59: Automatic Front Rest

    The closed and open positions are automatically set up by entering the pusher and bar stock diameter in the parameters. Each time the guiding zone is opened, the front rest searches for its referencing position. EXPRESS 220 S2/320 S2...

  • Page 60: Synchronization System (Express 320 S2 = Option)

    SYNCHRONIZATION SYSTEM (Express 320 S2 = option) Note: The Express 220 S2 comes with this device. On the machine Express 320 S2, it is an option. The bar feeder uses an electromechanical synchronization system directly connected to the tower to measure the movements of sliding head lathe and copy them to the pusher.

  • Page 61: Retraction Device

    The software takes the position into account, and saves the „End Of Bar” (EOB) and the „Top Cut” positions in a separate memory zone. Control mechanism of the 2 positions Adjust both retraction positions with the setting screws (C) and (D). EXPRESS 220 S2/320 S2...

  • Page 62: Loading For 2 Mm Bars (Express 320 S2 = Option)

    Lid (A) with guide bearings cylinders (B) for closed guiding area and prevent the bars of small diameter to come out of the guiding area. Course-end (C) added to the bars loading zone : Loading of the link ring (D) of the telescopic tube: EXPRESS 220 S2/320 S2...

  • Page 63: Loading System Increased By 100 Mm (Option)

    CHAPTER 7: GENERAL DESCRIPTION 10. LOADING SYSTEM INCREASED BY 100 mm (option) 10.1. Description This option is designed to increase the loading capacity of the bar feeder, by adding guides (A), according to the picture below. EXPRESS 220 S2/320 S2...

  • Page 64: Chapter 8: Handling

    CHAPTER 8: HANDLING CHAPTER 8: HANDLING EXPRESS 220 S2/320 S2...

  • Page 65: Powering On

    The master switch can be locked with a padlock. This means it is impossible to switch the bar feeder on. Push (2) the locking mechanism and insert (3) the padlock into the opening. Lock the padlock. EXPRESS 220 S2/320 S2...

  • Page 66: Remote Control

    The most recent error signals are saved in a register and can be recalled to establish diagnostics. The remote control has five distinct segments, namely: display (A), function keys (B), directional keys and numeric pad (C), modes buttons with STOP, MENU and HELP buttons (D), and the emergency button (E). EXPRESS 220 S2/320 S2...
  • Page 67 Access to the main menu Access to the help menu Referencing position Change of the guiding elements Switch to automatic mode Exit the current function, back to start Stop after machining one bar Back to previous page EXPRESS 220 S2/320 S2...
  • Page 68 Confirm. In settings mode, to validate a new parameter or a new value, press and hold until the icon Increase value during correction setting disappears. (approximately 3 seconds) Start sequence Reduce value during correction setting EXPRESS 220 S2/320 S2...
  • Page 69 The HELP key displays useful information about the software version, the firmware of the critical components, the current status of the inputs and outputs of the system. 2.5.4. CLEAR key Allows canceling a wrongly introduced value. EXPRESS 220 S2/320 S2...

  • Page 70: Set-Up

    Place a few bars of the desired diameter on the inclined plane (B), resting on the stops (C). · Lower the upper limiters (A) so that the clearance between the limiter and the bars is about 1 mm. · Tighten the locking adjustable handles (D). EXPRESS 220 S2/320 S2...
  • Page 71 3. Guiding elements change : Guiding elements · Extract the guiding elements by pulling them out of the aluminium channel. · Insert the new elements to the channel, and push down the elements inside the support. EXPRESS 220 S2/320 S2...
  • Page 72 2 seconds The grips will open. · Pull the jaws (A) from the top. · Install the new jaws and lock the screws (B). · Press [MENU] key or [STOP] to come out from the adjustment mode. EXPRESS 220 S2/320 S2...
  • Page 73 Incorrect: The radius of the grip is greater than the radius of the bar. The jaws press against only three points at 120 degrees. Correct: Modify the centers of the jaws to obtain 2 times 6 support clamping points at 60 degrees. EXPRESS 220 S2/320 S2...
  • Page 74 + 1 mm), but should always be larger than that of the diameter of the feeding pusher. For inserting and removing the spindle reductions, move the bar feed system using the retraction device. Spindle reduction tubes are available from LNS, upon request. EXPRESS 220 S2/320 S2...

  • Page 75: Software Settings

    The pushing torque of the motor is automatically selected according to the bar stock diameter. When hexagonal or squares bars must be loaded, the servo motor intelligently manages the loading into the lathe. This section indicates the activating and setting procedures for these functions. EXPRESS 220 S2/320 S2...
  • Page 76 Access to other languages Miscellaneous functions · Referencing position · Front rest setup · Timings on lathe’s clamping device Library This function allows for loading, adding, saving, replacing a part Service Reserved technicians maintenance displaying masked parameters. EXPRESS 220 S2/320 S2...
  • Page 77 Introduce the diameter on edges of the profiled bars (option) This function only serves to adapt the front rest to the edge diameters. EXPRESS 220 S2/320 S2...
  • Page 78 Total length of the loading The total loading length (Lt) included the work piece length (Lp), the thickness of the top-cut tool (C) and the thickness of the facing tool (not represented on this picture, depends on the part program). EXPRESS 220 S2/320 S2...
  • Page 79 This positioning corresponds to a value (Z) programmed by the operator, which is equal to the distance between the measuring cell and the position of the material in the lathe clamping device. With this system, the setting is the same for any bar length. More information in section 10 of this chapter. EXPRESS 220 S2/320 S2...
  • Page 80 When the headstock backs up with open clamp, this setting ensures that the position of the bar does not change. For example, in the case where the gripper would have remained bonded and would nonetheless pull the bar. EXPRESS 220 S2/320 S2...
  • Page 81 This function allows to use the lathe (production cycle) without the bar feeder (work piece, lathe preheating, etc.). To enable this setting, the pusher must be in the rear position, the guide channel must be open and the protective cover closed. EXPRESS 220 S2/320 S2...
  • Page 82 This positioning corresponds to a value (Z) programmed by the operator, which is equal to the distance between the measuring cell and the position of the material in the lathe clamping device. With this system, the setting is the same for any bar length. Further information in the startup manual. EXPRESS 220 S2/320 S2...
  • Page 83 The indicated value represents the position of the pusher from its position of origin. In principle, this value is set in the factory and must not be altered. EXPRESS 220 S2/320 S2...
  • Page 84 This parameter sets the compression value of the bar to track the movement between the headstock and the advance of the pusher. It can be defined for the supply of each piece (indicate "1" in the right field) or all the parts X (indicate the desired number in the right field). EXPRESS 220 S2/320 S2...
  • Page 85 Mechanical closing/opening time for the clamping system (may not be visible) For clamping with a mandrel, a closing/opening time may have to be configured to prevent the lathe starting up before the unit has closed/opened completely. EXPRESS 220 S2/320 S2...

  • Page 86: Parts Library

    CHAPTER 8: HANDLING PARTS LIBRARY The party library is only operational if an optional memory extension card is installed on the PLC. Please contact LNS for more information. PART LIBRARY The main « Parts Library » shows the current state of the library.

  • Page 87: Service

    Changing these values can damage the devices and create operator safety issues. Therefore, these parameters are protected with a password, and only an LNS (or certified) technician is authorised to modify them. 1. Bar feeder length (2 m/3 m/12’/4 m) Bar feeder 2.

  • Page 88: Help Screens

    Inputs This screen shows the current input signals being used in the barfeed. Outputs This screen shows the current output signals being used in the barfeed. EXPRESS 220 S2/320 S2...
  • Page 89 Memory list This screen helps entering and monitoring specific bits (status in green/red), register values (value in left box). Interface relay This screen allows to force an interface relay into a logical state (0 or 1). EXPRESS 220 S2/320 S2...

  • Page 90: Automatic Cycle

    11. The collet clamps the material and the pusher moves to the fully retracted position. 12. Once the pusher is fully retracted, the collet releases the material and the remnant falls into the tray. 13. The pusher moves up. EXPRESS 220 S2/320 S2...

  • Page 91: End Of Bar Position

    · The maximum remnant length (Max) is obtained when there is not enough material for machining an additional part (Lp – 1 mm). Maximum remnant length = Lp – 1 mm + Min EXPRESS 220 S2/320 S2...
  • Page 92 · Press the [+] icon to add the value, or the icon [-] to subtract it. The new value is stored. · To exit the end of bar set mode, press the key attributed to the icon [ESC]. Jump to point 8. EXPRESS 220 S2/320 S2...
  • Page 93 Correct if necessary with the key [REW]. · To validate the new end of bar position, keep [ENTER] pressed until the [REW] [FWD] screen blinks. [ENTER] To exit the set mode, press the keys [ESC] or [STOP]. [ESC] [STOP] EXPRESS 220 S2/320 S2...

  • Page 94: 10. Top-Cut Position

    : Functions Conditions By offset correction By teaching Guiding channel opened Presence of a bar in the guiding Icon [+/-] Icon [TEACH IN] channel All other cases Icon [+/-] EXPRESS 220 S2/320 S2...

  • Page 95: 11. Powering Down

    When powering off the device, make sure the carriage is in the rear position, the pusher is retracted and there is no bar present in the guiding elements. To power down, turn the switch to the left, to the 0/OFF position. EXPRESS 220 S2/320 S2...
  • Page 96 CHAPTER 8: HANDLING EXPRESS 220 S2/320 S2...
  • Page 97 CHAPTER 8: HANDLING EXPRESS 220 S2/320 S2...

  • Page 98: Chapter 9: Malfunctions/Maintenance

    CHAPTER 9: MALFUNCTIONS/MAINTENANCE CHAPTER 9: MALFUNCTIONS/MAINTENANCE EXPRESS 220 S2/320 S2...

  • Page 99: Factors Affecting Performance

    It is therefore highly recommended to install reduction liners inside the spindle. EXPRESS 220 S2/320 S2...
  • Page 100 In general, the difficulty increases with the specific weight of the bar. Steel bars are relatively easy to guide. Because of their great flexibility and specific weight, brass bars are relatively difficult to guide at high speeds. Aluminium bars are very easy to guide. EXPRESS 220 S2/320 S2...

  • Page 101: Alarms

    Please read the safety instructions provided at the beginning of this manual before handling the following devices. Particular attention should be given to the handling of electrical elements because of risks of electrocution. In case of possible electrical malfunctions, it is advisable to contact LNS or their local representative. 2.1. PLC alarms...
  • Page 102 AL15 - PROBLEM BEFORE BLOCKS CLOSE! Description This alarm is activated when the PLC receives no signal (I1 – SQ4). The problem appears if the SQ4 sensor is defective or poorly adjusted, or if the locking mechanism has a fault. EXPRESS 220 S2/320 S2...
  • Page 103 AL21 – SQ5 SENSOR DEFECT! Description The PLC does not receive the signal (I3 – SQ5). The problem appears when the pusher is not in park positon or if the sensor does not provide a signal. EXPRESS 220 S2/320 S2...
  • Page 104 Solutions Remove the bar out of the spindle. Start the top-cut cycle again. If the problem persists, please contact LNS. AL24 - SAFETY TIME FOR PART FEED OUT ELAPSED ! Description This alarm is generated when the bar feeder has not received any clamping device closing signal within the determined timeframe (30s.).
  • Page 105 Check the pusher’s gripper. It could be worn, broken, or of incorrect size. Check if the pusher was seized in the channel. Check that the channels are well sit, and remove any chips. If issue persists, please contact LNS. AL29 – THE BAR STOCK DOES NOT LEAN AGAINST THE CUT TOOL! Description Activates during bar loading, when the gripper sticks, or if the torque is incorrectly set.
  • Page 106 Check presence of bars on the ramp. Load bar stock to continue the production. AL36 – A BAR IS PRESENT IN SIMULATION! Description A bar has been detected during simulation, which is not allowed. Solutions Check for bar presence and remove it. EXPRESS 220 S2/320 S2...
  • Page 107 Please refer to the section “Servo amplifier alarms". AL43 – AMPLIFIER BATTERY LOW! Description The voltage level of the battery located on the motor power driver is low. Solutions The charge level of the amplifier battery is low. Replace as soon as possible. EXPRESS 220 S2/320 S2...
  • Page 108 AL49 - Not used. AL50 - INCOMPATIBLE AMPLIFIER FIRMWARE! Description The firmware of the servo driver is not compatible with the LNS software. Solutions Please replace the driver. (check with your LNS representative). AL56 – STOP AFTER A BAR! Description The operator has selected to stop the loading during loading of the bar.

  • Page 109: Servo Amplifier Alarms

    CHAPTER 9: MALFUNCTIONS / MAINTENANCE SERVO AMPLIFIER ALARMS EXPRESS 220 S2/320 S2...
  • Page 110 CHAPTER 9: MALFUNCTIONS/MAINTENANCE EXPRESS 220 S2/320 S2...
  • Page 111 CHAPTER 9: MALFUNCTIONS / MAINTENANCE EXPRESS 220 S2/320 S2...
  • Page 112 CHAPTER 9: MALFUNCTIONS/MAINTENANCE EXPRESS 220 S2/320 S2...
  • Page 113 CHAPTER 9: MALFUNCTIONS / MAINTENANCE EXPRESS 220 S2/320 S2...

  • Page 114: Maintenance

    At no time should cleaning products come into contact with electrical components. 4.6. Spare parts Unless written consent is provided by LNS, no addition or modification may be made to the machine or its spare parts. LNS cannot be held liable if spare parts not provided by LNS are used.
  • Page 115 CHAPTER 9: MALFUNCTIONS / MAINTENANCE EXPRESS 220 S2/320 S2...

  • Page 116: Chapter 10: Appendices

    CHAPTER 10: APPENDICES CHAPTER 10: APPENDICES EXPRESS 220 S2/320 S2...

  • Page 117: Ordering Form

    CHAPTER 10: APPENDICES ORDERING FORM This form should be photocopied, duly filled out, and returned to your retailer or nearest LNS agent. Company name: Person in charge: Address: ZIP: City: Country: Phone: Fax: Type of device: Serial number: Qty. Order no.

  • Page 118: Programming Example

    PARTS CATCHER OFF (IF INSTALLED) N... N... N... X, Z, G, F, T, S, M, ... N... N... END OF PROGRAM (LOOP) Important: The above is an example only. Programming may change depending on the interface. EXPRESS 220 S2/320 S2...

  • Page 119: Lns Adresses

    CHAPTER 10: APPENDICES LNS ADRESSES LNS Europe: www.lns-europe.com LNS America: www.lns-america.com LNS Asia: www.lns-asia.com EXPRESS 220 S2/320 S2...

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